149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/*-
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* Copyright (c) 2005 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD: src/lib/libgssapi/gss_utils.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
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*/
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#include "mech_locl.h"
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static OM_uint32
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_gss_copy_oid(OM_uint32 *minor_status,
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gss_const_OID from_oid, gss_OID to_oid)
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{
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size_t len = from_oid->length;
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*minor_status = 0;
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to_oid->elements = malloc(len);
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if (!to_oid->elements) {
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to_oid->length = 0;
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*minor_status = ENOMEM;
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return GSS_S_FAILURE;
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}
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to_oid->length = len;
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memcpy(to_oid->elements, from_oid->elements, len);
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return (GSS_S_COMPLETE);
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}
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OM_uint32
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_gss_free_oid(OM_uint32 *minor_status, gss_OID oid)
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{
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*minor_status = 0;
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if (oid->elements) {
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free(oid->elements);
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oid->elements = NULL;
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oid->length = 0;
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}
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return (GSS_S_COMPLETE);
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}
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struct _gss_interned_oid {
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HEIM_SLIST_ENTRY(_gss_interned_oid) gio_link;
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gss_OID_desc gio_oid;
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};
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static HEIM_SLIST_HEAD(_gss_interned_oid_list, _gss_interned_oid) interned_oids =
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HEIM_SLIST_HEAD_INITIALIZER(interned_oids);
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extern gss_OID _gss_ot_internal[];
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extern size_t _gss_ot_internal_count;
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static OM_uint32
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intern_oid_static(OM_uint32 *minor_status,
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gss_const_OID from_oid,
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gss_OID *to_oid)
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{
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size_t i;
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/* statically allocated OIDs */
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for (i = 0; i < _gss_ot_internal_count; i++) {
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if (gss_oid_equal(_gss_ot_internal[i], from_oid)) {
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*minor_status = 0;
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*to_oid = _gss_ot_internal[i];
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return GSS_S_COMPLETE;
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}
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}
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return GSS_S_CONTINUE_NEEDED;
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}
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OM_uint32
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_gss_intern_oid(OM_uint32 *minor_status,
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gss_const_OID from_oid,
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gss_OID *to_oid)
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{
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OM_uint32 major_status;
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struct _gss_interned_oid *iop;
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major_status = intern_oid_static(minor_status, from_oid, to_oid);
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if (major_status != GSS_S_CONTINUE_NEEDED)
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return major_status;
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HEIM_SLIST_ATOMIC_FOREACH(iop, &interned_oids, gio_link) {
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if (gss_oid_equal(&iop->gio_oid, from_oid)) {
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*minor_status = 0;
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*to_oid = &iop->gio_oid;
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return GSS_S_COMPLETE;
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}
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}
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iop = malloc(sizeof(*iop));
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if (iop == NULL) {
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*minor_status = ENOMEM;
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return GSS_S_FAILURE;
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}
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major_status = _gss_copy_oid(minor_status, from_oid, &iop->gio_oid);
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if (GSS_ERROR(major_status)) {
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free(iop);
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return major_status;
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}
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HEIM_SLIST_ATOMIC_INSERT_HEAD(&interned_oids, iop, gio_link);
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*minor_status = 0;
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*to_oid = &iop->gio_oid;
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return GSS_S_COMPLETE;
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}
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OM_uint32
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_gss_copy_buffer(OM_uint32 *minor_status,
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const gss_buffer_t from_buf, gss_buffer_t to_buf)
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{
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size_t len = from_buf->length;
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*minor_status = 0;
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to_buf->value = malloc(len);
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if (!to_buf->value) {
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*minor_status = ENOMEM;
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to_buf->length = 0;
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return GSS_S_FAILURE;
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}
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to_buf->length = len;
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memcpy(to_buf->value, from_buf->value, len);
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return (GSS_S_COMPLETE);
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}
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